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Proceedings Paper

Thermal and optical properties of rare earth metal β-Diketone Bipy complexes as optical recording materials
Author(s): Dongzhe Ma; Yiqun Wu; Xin Jiang; Zhimin Chen; Xia Zuo
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Paper Abstract

Three kinds of novel rare earth metal β-diketone bipy complexes have been synthesized. Smooth films of the complexes on K9 glass substrates and single-crystal silicon substrates were prepared by spin-coating method. The absorption spectra of these new materials were measured in solution and in film. The optical constants (complex refractive index N=n+ik ) of the films on single-crystal silicon substrates at 405nm were determined with scanning ellipsometer. The thermo-gravimetric analysis (TGA) of the materials was also carried out. It is found that the absorption spectra of these films have comparatively broad band in the wavelength region 300-400nm, the peek is at ~345nm and the absorption edge is steep in the wavelength region 350-400nm, which indicates that the absorption of the films is well matched with the wavelength of GaN semiconductor laser diode (405nm). The refractive index (n) of the films is above 1.9 and the extinction coefficient (k) of is 0.1-0.3 at 405nm. The reflection peeks are located near 405nm. And also the new materials possess excellent thermal stability (their decomposition temperatures are higher than 300°C). The results imply that these novel materials are promising candidates for the recording media of blue discs.

Paper Details

Date Published: 15 September 2005
PDF: 4 pages
Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59661P (15 September 2005); doi: 10.1117/12.649798
Show Author Affiliations
Dongzhe Ma, Heilongjiang Univ. (China)
Yiqun Wu, Heilongjiang Univ. (China)
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China)
Xin Jiang, Heilongjiang Univ. (China)
Zhimin Chen, Heilongjiang Univ. (China)
Xia Zuo, Heilongjiang Univ. (China)

Published in SPIE Proceedings Vol. 5966:
Seventh International Symposium on Optical Storage (ISOS 2005)
Fuxi Gan; Lisong Hou, Editor(s)

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